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Novel three-rod valve

A new type of valve plate technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems affecting the normal opening and closing of the valve, the valve opening and closing is not in place, and the corrosion of the transmission part, etc., so as to prolong the service life, large flow capacity, and use long life effect

Pending Publication Date: 2022-01-04
HANGZHOU HANGYANG KOSO PUMP & VALVE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this type of structure, it is found that the straight-stroke cylinder is prone to air leakage due to the eccentric wear of the piston rod during use, thereby affecting the normal switching of the valve; the transmission parts such as the cylinder shaft and the transition plate are exposed, which is prone to transmission. Part of the corrosion situation, resulting in the valve switch is not in place

Method used

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with accompanying drawing: Figure 1-4 As shown, a new type of three-bar valve, which includes a three-bar valve body, the three-bar valve body is composed of a main valve part 1, a transmission mechanism 2 and a driving part 3, and the main valve part 1 includes a valve body 4, a valve Rod 5, valve seat 6 and valve plate 7, the valve seat 6 is arranged in the valve body 4, and the valve plate 7 is installed on the valve seat 6, the valve plate 7 is connected with the transmission mechanism 2, the valve stem 5 and the driving part 3 are connected in sequence, and the valve rod 5 is driven by the driving part 3 to drive the transmission mechanism 2 to move, so that the valve plate 7 on the main valve part 1 performs opening and closing movement, and realizes the switching action of the valve.

[0018] The drive part 3 includes a connecting frame 8 and a cylinder 10, the connecting frame 8 is fixed on ...

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Abstract

The invention relates to a novel three-rod valve which comprises a three-rod valve body. The three-rod valve body is composed of a main valve part, a transmission mechanism and a driving part; the main valve part comprises a valve body, a valve rod, a valve seat and a valve plate; the valve seat is arranged in the valve body; the valve plate is installed on the valve seat; the valve plate is sequentially connected with the transmission mechanism, the valve rod and the driving part; and the valve rod is driven by the driving part to drive the transmission mechanism to move, so that the valve plate on the main valve part is opened and closed, and the opening and closing actions of the valve are realized. The novel three-rod valve provided by the invention has the advantages of simple structure, convenience in use, long service life and the like.

Description

technical field [0001] The invention relates to a novel three-bar valve, which belongs to the technical field of valves. Background technique [0002] At present, the commonly used three-rod valves all use a straight-stroke cylinder to drive the rotation of the valve stem through a connecting rod mechanism, so as to realize the opening and closing of the valve. With this type of structure, it is found that the straight-stroke cylinder is prone to air leakage due to the eccentric wear of the piston rod during use, thereby affecting the normal switching of the valve; the transmission parts such as the cylinder shaft and the transition plate are exposed, which is prone to transmission. Part of the corrosion situation, resulting in the valve switch is not in place. The valve plate of the valve is made of carbon steel, and the valve plate is easy to rust under special working conditions. Because of the complex transmission part, the three-stem valve will occupy a certain flow c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/20F16K1/42F16K31/12F16K31/44
CPCF16K1/20F16K1/2007F16K1/2014F16K1/42
Inventor 金平陈涛
Owner HANGZHOU HANGYANG KOSO PUMP & VALVE
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